Unrated severityNVD Advisory· Published Jul 3, 2026
Debian httpcomponents-core5: Uncontrolled Resource Consumption vulnerability in the HTTP/1.1 message parser …
CVE-2026-54399
Description
Uncontrolled Resource Consumption vulnerability in the HTTP/1.1 message parser in Apache HttpComponents Core (5.4.2 and earlier, 5.5-beta1 and earlier) allows an remote attacker to cause a denial of service through memory exhaustion by sending messages with excessive number of headers / excessive header length
Affected products
2<5.5-beta1+ 1 more
- (no CPE)range: <5.5-beta1
- (no CPE)range: <=5.4.2, <=5.5-beta1
Patches
Vulnerability mechanics
News mentions
1- Apache Software Foundation: 21 Vulnerabilities Across Multiple Products Disclosed in Early July 2026Vypr Intelligence · Jul 3, 2026